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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Craft malicious GIF file
  2. Delivery
    Deliver to victim via email or drive-by download
  3. Exploit
    Victim opens file in GIMP
  4. Execution
    ReadJeffsImage overflows buffer
  5. Impact
    Arbitrary code executes in victim’s session

Vulnerability Assessment

Weakness
CWE
CWE-120
ASVS 5.0
V15 - Secure Coding and Architecture Buffer copy size validation
MITRE ATT&CK

1 technique across 1 tactic: Execution

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

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Exploitation Conditions

The attack requires a GIMP user to open a specially crafted GIF file. No configuration changes are necessary-the default GIF loader is vulnerable. The only limiting factors are the need for user interaction (UI:R) and local file access (AV:L), which significantly reduce remote exploitation potential.
Impact

The CVSS base score of 7.8 reflects a local attack vector (AV:L), low complexity (AC:L), no privileges required (PR:N), but mandatory user interaction (UI:R), with full impact on confidentiality, integrity, and availability (C:I/A:I). EPSS (0.01 %) and CISA KEV absence indicate no active exploitation or immediate widespread threat. The SSVC assessment (Exploitation: none, Automatable: no) confirms this is a user‑dependent, low‑likelihood event, even though technical impact is total. The primary risk is targeted phishing or drive‑by download campaigns against GIMP users, not a mass‑exploitable network vector.
Exploit ScenarioDerived

An attacker crafts a malicious GIF, sends it via email or hosts it on a website, and convinces a GIMP user to open the file. The GIF parser's buffer overflow then hijacks execution flow, running code with the user's privileges. No public proof‑of‑concept exists, but such flaws are exploitable through common social‑engineering techniques.
This Week Schedule remediation this week. Why: HIGH severity (CVSS 7.0-8.9).
Patch available 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – Jul 26, 2026

Buffer overflow in GIMP's GIF image loading component allows arbitrary code execution when a victim opens a specially crafted GIF file. This local‑attack vulnerability (CVSS 3.1: AV:L/PR:N/UI:R) can lead to full compromise of the user's session. No public exploit has been identified, and EPSS exploitation probability is very low (0.01 %).

RemediationAI

Upgrade the gimp package to the version provided in the Red Hat errata for your RHEL release. The patch is available from the vendor; see advisory https://access.redhat.com/security/cve/CVE-2026-6384. Until patching is complete, restrict GIF processing by avoiding opening GIF files from untrusted sources, noting that this mitigates the threat but does not remove the underlying vulnerability.

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Technical ContextAI · show details

The flaw resides in the ReadJeffsImage function of GIMP's internal GIF parser (CWE‑120: Buffer Copy without Checking Size of Input). When a malformed GIF is processed, insufficient bounds checking allows a write beyond the allocated buffer. The CPE strings indicate the vulnerability affects GIMP packages shipped in Red Hat Enterprise Linux 6, 7, 8, and 9; the underlying GIF parsing code is part of GIMP's core image‑loading routines.

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  • Exploit and PoC references, threat intelligence from 22 sources
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Severity by source

NVD PRIMARY 7.8 HIGH
AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
vuln.today AI 7.8 HIGH

Requires local file access and user interaction; successful overflow gives full user-level compromise.

3.1 AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
4.0 AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
SUSE 7.3 HIGH
AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Red Hat 7.3 HIGH

Primary rating from NVD.

CVSS VectorNVD

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

Lifecycle Timeline

4
CVSS changed
Jun 30, 2026 - 03:24 NVD
7.3 (HIGH) 7.8 (HIGH)
Patch released
Apr 19, 2026 - 14:30 nvd
Patch available
CVE Published
Apr 15, 2026 - 19:09 nvd
HIGH 7.8
CVE Published
Apr 15, 2026 - 19:09 nvd
HIGH 7.3

DescriptionNVD

A flaw was found in gimp. This buffer overflow vulnerability in the GIF image loading component's ReadJeffsImage function allows an attacker to write beyond an allocated buffer by processing a specially crafted GIF file. This can lead to a denial of service or potentially arbitrary code execution.

Threat Intelligence Overview

EPSS Score
0.0%
Top 98% exploitable
Prevalence
Medium
GIMP is a widely used open-source image editor, especially on Linux desktops.
Social Media
1
Sightings
Data Quality
7 sources
Confidence: High
EUVD NVD CVE.org EPSS Vulnrichment Vendor CIRCL VulDB

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity HIGH
CISA KEV No
Public POC No
EPSS 0.0%
Patch available Yes
Active threat No
Deciding rule
HIGH severity (CVSS 7.0-8.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
Medium
Technical Impact
Total

Priority Score

39
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +39
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Buffer Overflow HIGH

A buffer overflow occurs when a program writes more data to a memory buffer than it was allocated to hold, causing the excess data to spill into adjacent memory regions.

Remote Code Execution CRITICAL

Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.

Denial of Service MEDIUM

Denial of Service attacks render applications or systems unavailable by overwhelming resources or triggering failure conditions.

Affected Products (CPE)NVD

cpe:2.3:a:red_hat:red_hat_enterprise_linux_6:*:*:*:*:*:*:*:*
cpe:2.3:a:red_hat:red_hat_enterprise_linux_7:*:*:*:*:*:*:*:*
cpe:2.3:a:red_hat:red_hat_enterprise_linux_8:*:*:*:*:*:*:*:*
cpe:2.3:a:red_hat:red_hat_enterprise_linux_9:*:*:*:*:*:*:*:*

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Same weakness CWE-120 – Classic Buffer Overflow

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CVE-2016-6366 HIGH POC
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CVE-2013-1331 HIGH
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CVE-2013-0641 HIGH
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CVE-2017-15222 CRITICAL POC
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Same technique RCE

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CVE-2012-4681 CRITICAL POC
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CVE-2023-3519 CRITICAL POC
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CVE-2015-5119 CRITICAL POC
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Vendor StatusVendor

SUSE

Severity: High
Product Status
SUSE Linux Enterprise Desktop 15 SP7 Fixed
SUSE Linux Enterprise Module for Package Hub 15 SP7 Fixed
SUSE Linux Enterprise Server 15 SP7 Fixed
SUSE Linux Enterprise Server for SAP Applications 15 SP7 Fixed
SUSE Linux Enterprise Workstation Extension 15 SP7 Fixed

References

Advisories & patches
ADVISORY https://nvd.nist.gov/vuln/detail/CVE-2026-6384 ADVISORY https://vuldb.com/vuln/357860 REF https://access.redhat.com/security/cve/CVE-2026-6384 REF https://bugzilla.redhat.com/show_bug.cgi?id=2458749 REF https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-6384.json

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